92 lines
2.3 KiB
PHP
92 lines
2.3 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Gdata
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* @subpackage Gdata
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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/**
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* A wrapper for strings for buffered reading.
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*
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* @category Zend
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* @package Zend_Gdata_MimeBodyString
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* @subpackage Gdata
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Gdata_MimeBodyString
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{
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/**
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* The source string.
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*
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* @var string
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*/
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protected $_sourceString = '';
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/**
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* The size of the MIME message.
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* @var integer
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*/
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protected $_bytesRead = 0;
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/**
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* Create a new MimeBodyString object.
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*
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* @param string $sourceString The string we are wrapping.
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*/
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public function __construct($sourceString)
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{
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$this->_sourceString = $sourceString;
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$this->_bytesRead = 0;
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}
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/**
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* Read the next chunk of the string.
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*
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* @param integer $bytesRequested The size of the chunk that is to be read.
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* @return string A corresponding piece of the string.
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*/
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public function read($bytesRequested)
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{
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$len = strlen($this->_sourceString);
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if($this->_bytesRead == $len) {
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return FALSE;
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} else if($bytesRequested > $len - $this->_bytesRead) {
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$bytesRequested = $len - $this->_bytesRead;
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}
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$buffer = substr($this->_sourceString, $this->_bytesRead, $bytesRequested);
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$this->_bytesRead += $bytesRequested;
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return $buffer;
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}
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/**
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* The length of the string.
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*
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* @return int The length of the string contained in the object.
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*/
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public function getSize()
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{
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return strlen($this->_sourceString);
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}
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}
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